Polyester Laminating Resin LSE Code: R120

Technical Data Sheet
Polyester Laminating Resin LSE
Code: R120
Product Description
Polyester Laminating Resin LSE (R120) is an orthophthalic based resin, specifically designed for hand and
spray techniques. Ideal for use as a general purpose resin on boat hulls, septic tank, water tanks and
motor homes. R120 has a low peak exothermic temperature and low shrinkage rate.
R120 has been certified by Lloyds Register for marine use, and has low styrene emissions that will ease
workability in a workshop or confined space area.
Distinguished Characteristics
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Excellent physical properties
Low shrinkage rate
Good wet out and air release
Early development of barcol hardness
No gel time drift
Properties of Liquid Resin
Specific gravity
Viscosity
Thix- index
Acid value
Volatile content
Gel time
Time to peak
Peak Ex.temp
Units
Spec
25C
poise/25℃
mg-KOH/g
%
min.
min.
C
1.08-1.12
3.0 - 6.0
2.5 - 3.5
14 - 22
40 - 49
20 - 45
40 - 70
110-140
Remarks
#2, 60 rpm
6/60rpm
MEKP
2.0 PHR
at 25℃
*Properties reported in this data sheet are those typically taken in a controlled laboratory tests and will vary in production conditions.
Properties of Cured Resin
Units
Results
Tensile Strength
MPa
55-65
Tensile Modules
GPa
3.0-4.0
%
2.0-3.0
Flexural Strength
MPa
110-120
Flexural Modulus
GPa
4.0-4.4
Barcol Hardness
-
42-46
ASTM D 2583
Heat Distortion Temp.
℃
65-70
ASTM D 648
Water absorption
%
0.1↓
ASTM D 570
Elongation
Remarks
ASTM D 638
ASTM D 790
*Thickness 3mm, Catalyst: MEKP 2%, Post Cure: 80°c 2hrs 100°c 2hrs
Data R120 (8/2014)
Technical Data Sheet
Mixing Ratios
It is very important that the resin and catalyst are measured and mixed accurately. It is recommended
that electronic scales or measuring syringe be used. It is extremely important that the resin and catalyst
are thoroughly mixed, paying special attention to the sides and bottom of the mixing container.
The optimum addition rate for the catalyst is 1.0% to 2.5% of the resin weight. Using levels below this
can result in slow or delayed cure. At no time should the catalyst be allowed to drop below 1.00% of the
resin weight as this could cause permanent under-cure.
Trojan Fibreglass recommends that all Polyester and Vinylester Resins be catalysed at a ratio of 2%.
Eg: 150gm (Resin) : 3gm (Catalyst)
Health and Safety
Skin contact should be avoided by wearing protective gloves. Trojan Fibreglass recommends the use of
disposable gloves for most applications. The use of barrier creams is not recommended, but to preserve skin
conditions a moisturising cream should be used after washing. Overalls or other protective clothing should
be worn when mixing, laminating or sanding. Contaminated clothing should be thoroughly cleaned before
use. Eye protection should be worn at all times when mixing, laminating, or sanding. If eye contacted occurs,
hold the eye lid open and seek medical attention.
Ensure adequate ventilation in work areas. Respiratory protection should be worn at all times when using
fibreglass products. If skin becomes contaminated, then the area concerned should be immediately cleaned
and washed with warm soapy water. It is best to avoid using solvents to clean resin off the skin.
For more health and safety procedures, it is recommended that the material safety data sheet should be
consulted at all times.
Transport and Storage
The resins and catalyst should be kept in securely closed containers during transport and storage. Any
accidental spillage should be soaked up with sand, sawdust, or absorbent material. The area should be
washed clean.
Adequate long term storage conditions for both resins and hardeners will result in shelf lives of 3-6 months.
Storage should be in a warm dry place out of direct sun light, and protected from frost. The temperature
should be between 10 and 25 degrees C. Containers should be firmly closed.
Available Packaging Sizes
Polyester Laminating Resin LSE (R120) is available from Trojan Fibreglass via ordering over the phone,
online or by visiting our factory retail store located in Redhead, NSW.
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220kg Steel Drum
20kg Steel Pail
4kg Steel Can
2kg Steel Can
1kg Steel Can
Further Information
Trojan Fibreglass PTY LTD
1/36 Kalaroo Road, Redhead NSW 2318
Ph: 02 4942 6940 Fax: 02 4942 6941
Email: [email protected]
Web: www.trojanfibreglass.com.au
This information and data contained herein is offered solely as a guide. The information contained in this publication is based on actual laboratory data and field test experience. We believe this information to be
reliable, but do not guarantee its applicability to the user’s process or assume any responsibility or liability arising out of its use or performance. The user agrees to be responsible for thoroughly testing any
application to determine its suitability before committing to production. It is important for the user to determine their own needs. Because of numerous factors affecting results, we make no warranty of any kind,
express or implied, including those of merchantability and fitness for a particular purpose. Statements in this publication shall not be construed as representations or warranties or as inducements to infringe any
patent or violate any law safety code or insurance regulation.
Data R120 (8/2014)

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